Total Hemispherical Emissivity of Potential Structural Materials for Very High Temperature Reactor Systems: Alloy 617

Walton, Kyle L.; Maynard, Raymond K.; Ghosh, Tushar K.; Tompson, Robert V.; Viswanath, Dabir S.; Loyalka, Sudarshan K.

doi:10.1080/00295450.2018.1521177

Cited by 6 publications

(1 citation statement)

References 15 publications

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“…Wang et al investigated the effect of the surface microstructures of graphite on the infrared emissivity within the 5.5 μm to 17 μm in the temperature range between 1300 K to 1900 K [13]. Walton et al investigated the coating of graphite could improve the total hemispherical emissivity of Alloy 617 [14]. Alekseev et al found that adding alumina coating on the surface can effectively improve the emissivity of molybdenum by experiment [15].…”

Section: Introductionmentioning

confidence: 99%

Normal spectral emissivity characteristics of tungsten in the mid-infrared region

Zhang

Yang

et al. 2023

J. Inst.

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Tungsten is an important material constituting the first wall of the Experimental Advanced Superconducting Tokamak due to its excellent corrosion resistance. The temperature distribution of the first wall during the discharge process are the key to ensuring the safe and stable operation of the EAST. Therefore, it is necessary to explore the dependence of material emissivity on temperature and wavelength for improving temperature measurement accuracy. This work quantitatively explores the normal spectral emissivity of tungsten within the 3 μm to 5 μm in the temperature range between 100°C and 500°C based on the Fourier transform infrared spectrometer. The dependence of emissivity on wavelength and temperature are experimentally analyzed, and the possible functional relationship between the emissivity of tungsten and the surface temperature and the wavelength are established respectively. This work could lay the foundation for the application of multi-wavelength thermometry on temperature measurement of the first wall of the EAST.

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Section: Introductionmentioning

confidence: 99%